Vibration tool

Abstract

The vibration tool comprises a base assembly, the base assembly comprises a bottom plate, and a supporting face is arranged on one side of the bottom plate in the thickness direction of the bottom plate; the installation assembly is arranged on the side where the supporting face is located and used for installing a to-be-tested piece, the installation assembly is provided with a first end part and a second end part which are opposite, and the first end part is rotationally connected with the base assembly through a rotating shaft; the angle adjusting assembly is connected between the base assembly and the mounting assembly, the angle adjusting assembly comprises a sliding rail, a sliding piece and a supporting rod, the sliding rail is arranged on the supporting face and extends in the first direction, the first direction intersects with the extending direction of the rotating shaft, one end of the supporting rod is rotationally connected with the sliding piece, and the other end of the supporting rod is rotationally connected with the second end part; the sliding piece is in sliding fit with the sliding rail and can reciprocate relative to the sliding rail in the first direction so as to drive the mounting assembly to rotate relative to the base assembly. According to the vibration tool, the angle can be adjusted, so that vibration tests can be carried out on equipment with different vibration angle requirements.

Description

Technical Field

[0001] This application belongs to the field of experimental equipment technology, and in particular relates to a vibration fixture. Background Technology

[0002] With the rapid development of science and technology, especially in fields such as aerospace and shipbuilding, equipment must undergo vibration testing according to relevant national standards, such as GJB150A, to verify its reliability. Before research and development, production, and use, equipment typically requires various vibration tests, such as environmental stress screening random vibration tests, functional vibration tests, durability vibration tests, and road transport vibration tests. When conducting vibration tests, vibration fixtures are used to connect the equipment to the vibration table, transmitting the excitation from the vibration table to the tested equipment.

[0003] However, the vibration fixtures in the relevant technologies cannot be adjusted in angle, making it impossible to conduct vibration tests on equipment with different vibration angle requirements, resulting in poor versatility. Utility Model Content

[0004] This application provides a vibration fixture that can be adjusted in angle to perform vibration tests on equipment with different vibration angle requirements, thereby improving the versatility of the vibration fixture itself.

[0005] This application provides a vibration fixture, including a base assembly, a mounting assembly, and an angle adjustment assembly. The base assembly includes a base plate with a support surface on one side in its thickness direction. The mounting assembly is disposed on the side of the support surface and is used to mount the test piece. The mounting assembly has a first end and a second end opposite to each other. The first end is rotatably connected to the base assembly via a rotating shaft. The angle adjustment assembly is connected between the base assembly and the mounting assembly. The angle adjustment assembly includes a slide rail, a sliding member, and a support rod. The slide rail is mounted on the support surface and extends along a first direction, which intersects the extension direction of the rotating shaft. One end of the support rod is rotatably connected to the sliding member, and the other end is rotatably connected to the second end. The sliding member slides in cooperation with the slide rail and can reciprocate relative to the slide rail along the first direction to drive the mounting assembly to rotate relative to the base assembly.

[0006] According to one aspect of the embodiments of this application, the vibration fixture further includes an auxiliary support assembly mounted on the support surface. The auxiliary support assembly includes two side brackets and a first fastener. The two side brackets are respectively located on both sides of the mounting assembly along the second direction. The first direction, the second direction, and the thickness direction of the base assembly are intersected in pairs. The side brackets have an arc-shaped groove that extends through the second direction. The arc-shaped groove extends along an arc-shaped trajectory, and the central axis of the arc-shaped groove is concentric with the rotation axis. The first fastener passes through the arc-shaped groove and is connected to the mounting assembly. The first fastener can slide in the arc-shaped groove as the mounting assembly rotates, and the first fastener can limit the relative position between the mounting assembly and the side brackets.

[0007] According to one aspect of the embodiments of this application, the central angle corresponding to the arc groove is greater than or equal to 90°, and the side bracket is provided with angle markings distributed along the extension direction of the arc groove. The angle markings are used to indicate the rotation angle of the mounting assembly.

[0008] According to one aspect of the embodiments of this application, the slide rail is provided with two slide grooves extending along a first direction, and the slide grooves are recessed along a second direction. The two slide grooves are symmetrically arranged on opposite sides of the slide rail in the second direction. The sliding member includes a sliding body and two limiting parts disposed on the sliding body. The sliding body is sleeved on the slide rail, and the limiting parts extend at least partially into the slide grooves. The limiting parts and the slide grooves are arranged in a one-to-one correspondence.

[0009] According to one aspect of the embodiments of this application, the slide rail is provided with a plurality of first fixing holes that extend through the slide rail in a second direction, and the plurality of first fixing holes extend along the first direction and are spaced apart in the first direction; the sliding body is provided with a second fixing hole that extends through the slide rail in the second direction, and the orthographic projection of the second fixing hole at least partially overlaps with the orthographic projection of the first fixing hole in the second direction; the angle adjustment assembly further includes a second fastener that passes through the first fixing hole and the second fixing hole to define the relative position of the sliding member and the slide rail in the first direction.

[0010] According to one aspect of the embodiments of this application, the mounting assembly includes a mounting plate and a rotating bracket. The mounting plate has a mounting groove on the side facing the support rod. The rotating bracket is at least partially disposed in the mounting groove and detachably connected to the mounting plate. The rotating bracket is rotatably connected to one end of the support rod.

[0011] According to one aspect of the embodiments of this application, the base assembly further includes a base plate and a rotating support seat, the support surface is located on the base plate, the rotating support seat is disposed on the support surface and detachably connected to the base plate, and the first end of the mounting assembly is rotatably connected to the rotating support seat via a rotating shaft.

[0012] According to one aspect of the embodiments of this application, the vibration fixture further includes an adapter plate and a third fastener. The adapter plate is connected to the mounting assembly, the mounting assembly is provided with a plurality of first connection holes, the adapter plate is provided with a plurality of second connection holes, and the third fastener passes through the first connection holes and the second connection holes to detachably connect the adapter plate and the mounting assembly.

[0013] According to one aspect of the embodiments of this application, a plurality of first connecting holes are arranged to form a plurality of first pattern units, and a plurality of second connecting holes are arranged to form at least one second pattern unit. Along the thickness direction of the adapter plate, the second pattern unit can be configured to correspond to any one of the plurality of first pattern units.

[0014] According to one aspect of the embodiments of this application, the mounting assembly includes a mounting plate and a rotating bracket that are detachably connected to each other, the rotating bracket being rotatably connected to one end of a support rod; along the thickness direction of the mounting plate, the orthographic projections of a plurality of first connecting holes are all offset from the orthographic projections of the rotating bracket.

[0015] The vibration fixture provided in this application includes a base assembly, a mounting assembly, and an angle adjustment assembly. The base assembly includes a base plate with a support surface on one side of its thickness direction. The mounting assembly and the angle adjustment assembly are both disposed on the support surface. The mounting assembly is used to install and connect the test piece, and one end of the mounting assembly is rotatably connected to the base assembly. The angle adjustment assembly can drive the mounting assembly to rotate relative to the base assembly to adjust the tilt angle of the test piece relative to the support surface. Thus, the vibration fixture can flexibly and conveniently adjust the test angle of the test piece and can adapt to vibration tests with different vibration angle requirements. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the vibration fixture provided in some embodiments of this application. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the vibration fixture provided in some embodiments of this application. Figure 2 ;

[0019] Figure 3 yes Figure 1 An enlarged view of region A shown;

[0020] Figure 4 This is a schematic diagram of the structure of the vibration fixture provided in some embodiments of this application. Figure 3 .

[0021] Marker explanation:

[0022] 100-Vibration fixture;

[0023] 10-Base assembly; 11-Base plate; 12-Rotating support; 111-Support surface;

[0024] 20 - Mounting component; 21 - First end; 22 - Second end; 23 - Mounting plate; 24 - Rotating bracket; 25 - First connecting hole;

[0025] 30-Angle adjustment assembly; 31-Slide rail; 32-Slider; 33-Support rod; 34-Second fastener; 311-Slide groove; 312-First fixing hole; 321-Sliding body; 322-Limiting part; 323-Second fixing hole;

[0026] 40 - Auxiliary support assembly; 41 - Side bracket; 42 - First fastener; 411 - Arc groove;

[0027] 50 - Adapter plate; 51 - Second connection hole;

[0028] 60 - Third fastener;

[0029] X - First direction; Y - Second direction; Z - Thickness direction.

[0030] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0031] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0033] With the rapid development of science and technology, especially in fields such as aerospace and shipbuilding, equipment must undergo vibration testing according to relevant national standards, such as GJB150A, to verify its reliability. Before research and development, production, and use, equipment typically requires various vibration tests, such as environmental stress screening random vibration tests, functional vibration tests, durability vibration tests, and road transport vibration tests. When conducting vibration tests, vibration fixtures are used to connect the equipment to the vibration table, transmitting the excitation from the vibration table to the tested equipment.

[0034] For specialized platforms such as aircraft, ships, and spacecraft, their internal structures are extremely complex, with passenger and cargo compartments and fuel tanks occupying the majority of the space. Therefore, the installation space available for various equipment is very limited. To fully utilize this limited internal space, a variety of installation methods must be employed. Equipment on these platforms can be fixed horizontally, laterally, or at an angle, with many pieces of equipment having specific installation angles; some even have four different installation angles. If traditional vibration fixtures are used for testing, at least five specialized fixtures must be fabricated to simulate the vibration effects under actual installation conditions, significantly increasing project costs. Furthermore, using five specialized fixtures for vibration testing requires multiple installations and removals during the test, consuming a considerable amount of time.

[0035] To address the aforementioned problems, this application provides a vibration fixture and vibration table capable of adjusting the angle to perform vibration tests on equipment with different vibration angle requirements. For a better understanding of this application, the following describes... Figures 1 to 4 The vibration fixture and vibration table are described in detail according to the embodiments of this application.

[0036] Please refer to the following: Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the vibration fixture provided in some embodiments of this application. Figure 1 , Figure 2 This is a schematic diagram of the structure of the vibration fixture provided in some embodiments of this application. Figure 2 .

[0037] This application provides a vibration fixture 100, including a base assembly 10, a mounting assembly 20, and an angle adjustment assembly 30. The base assembly 10 includes a base plate 11, and the base plate 11 has a support surface 111 on one side in its thickness direction Z. The mounting assembly 20 is disposed on the side where the support surface 111 is located and is used to mount the test piece. The mounting assembly 20 has a first end 21 and a second end 22 opposite to each other. The first end 21 is rotatably connected to the base assembly 10 via a rotating shaft. The angle adjustment assembly 30 is connected between the base assembly 10 and the mounting assembly 20. The angle adjustment assembly 30 includes a slide rail 31, a slider 32, and a support rod 33. The slide rail 31 is mounted on the support surface 111 and extends along a first direction X. The first direction X intersects the extension direction of the rotating shaft. One end of the support rod 33 is rotatably connected to the slider 32, and the other end is rotatably connected to the second end 22. The slider 32 is slidably engaged with the slide rail 31 and can reciprocate relative to the slide rail 31 along the first direction X to drive the mounting assembly 20 to rotate relative to the base assembly 10.

[0038] This application provides a vibration fixture 100, which connects the test piece (DPT) to the surface of a vibration table and transmits excitation from the vibration table to the DPT. Since the DPT needs to be used after vibration testing, it is typically detachably connected to the vibration fixture 100, indirectly connecting to the vibration table. This detachable connection can be achieved by fastening with bolts or other fasteners, or by a snap-fit ​​connection where one part of the fixture inserts into the other.

[0039] The vibration fixture 100 provided in this application embodiment includes a base assembly 10, a mounting assembly 20, and an angle adjustment assembly 30. The base assembly 10 includes a base plate 11, which can be a plate-shaped structure with the main body extending along a plane. It has a support surface 111 on one side in its thickness direction Z. The support surface 111 is used to support the mounting assembly 20 and the angle adjustment assembly 30. Thus, the support surface 111 can be a relatively flat surface, or it can be adapted to the connection form and specific structure of the components to be installed with concave and convex surfaces.

[0040] Mounting assembly 20 is disposed on support surface 111. Mounting assembly 20 has a first end 21 and a second end 22 disposed opposite to each other. The first end 21 is rotatably connected to base assembly 10 via a rotating shaft. The central axial direction of the rotating shaft extends intersects the opposite direction of the first end 21 and the second end 22, thereby enabling mounting assembly 20 to rotate relative to base assembly 10. That is, the angle between mounting assembly 20 and support surface 111 can be adjusted by rotation.

[0041] Optionally, both the base assembly 10 and the mounting assembly 20 may be made of aluminum alloy to make them lightweight, strong, reliable, and low-cost.

[0042] It is understood that the aforementioned first end 21 and second end 22 are not limited to the two opposite end faces of the mounting component 20, but may also include a portion of the area near the end face, such as a portion of the area near both end faces whose size is within one-quarter of the overall size in the direction opposite to the first end 21 and the second end 22. That is, the position connected to the mounting component 20 may be at the end face of the mounting component 20, or may be located in a portion of the side surface of the mounting component 20 away from the test piece to be mounted, near the end face.

[0043] An angle adjustment component 30 is disposed on the support surface 111 and connected to the mounting component 20. The angle adjustment component 30 includes a slide rail 31, a sliding member 32, and a support rod 33. The slide rail 31 is disposed on the support surface 111, and the slide rail 31 and the base plate 11 can be detachably connected for easy maintenance and replacement. The sliding member 32 slides in cooperation with the slide rail 31 and can reciprocate along the extension direction of the slide rail 31.

[0044] Optionally, when the drive slider 32 moves along the slide rail 31, it can be manually adjusted by the operator, or it can be automatically adjusted / remotely controlled by the cooperation of the transmission component and the drive component, such as a telescopic rod, a threaded screw structure or a gear rack structure. This application does not make any specific limitations on this.

[0045] The support rod 33 connects the slider 32 and the mounting assembly 20. Its two opposite ends along its own extension direction can be rotatably connected to the side of the slider 32 facing the mounting assembly 20 and the second end 22 of the mounting assembly 20, respectively. Thus, by moving the slider 32 along the slide rail 31, the support rod 33 can be driven to move, and then the mounting assembly 20 can be driven to rotate relative to the rotation axis to the desired angle position.

[0046] Optionally, the angle adjustment assembly 30 may include one slide rail 31 and one slider 32 to simplify the structure and reduce costs; alternatively, the angle adjustment assembly 30 may include multiple slide rails 31 and multiple sliders 32, with the slide rails 31 and sliders 32 optionally arranged in a one-to-one correspondence to ensure stable rotation of the mounting assembly 20 and good support after reaching the preset angle. The specific number of slide rails 31 and sliders 32 can be determined comprehensively based on the actual stress conditions of the vibration fixture 100 during actual vibration testing and factors such as production costs.

[0047] Optionally, the slide rail 31 can be detachably connected to the base assembly 10. The detachable connection can be a detachable connection using fasteners such as bolts, or a detachable connection using a method where one part extends into the other for a snap-fit ​​engagement.

[0048] For example, the slide rail 31 may be provided with a slide rail 31 connection hole, and the base plate 11 may be provided with a corresponding slide rail 31 mounting hole. The slide rail 31 is detachably connected to the base assembly 10 by fasteners passing through the slide rail 31 connection hole and the slide rail 31 mounting hole. This arrangement not only enables the slide rail 31 to be detachably connected to the base, but also allows for easy replacement of the damaged part if either the slide rail 31 or the base is damaged, reducing maintenance costs. Furthermore, the connection between the slide rail 31 and the base via fasteners provides a more stable connection, meeting the connection strength requirements of vibration tests. Optionally, the fasteners are screws, and correspondingly, the slide rail 31 mounting hole and connection hole may be threaded holes. Of course, in other embodiments, the slide rail 31 may also be fixedly connected to the base, and this fixed connection may be achieved by welding.

[0049] In summary, the vibration fixture 100 provided according to one embodiment of this application includes a base assembly 10, a mounting assembly 20, and an angle adjustment assembly 30. The base assembly 10 includes a base plate 11 with a support surface 111. The mounting assembly 20 and the angle adjustment assembly 30 are disposed on the support surface 111. The angle adjustment assembly 30 is connected between one end of the base assembly 10 and the mounting assembly 20 and can drive the mounting assembly 20 to rotate relative to the base assembly 10 to adjust the tilt angle of the mounting assembly 20 relative to the support surface 111. Therefore, the vibration fixture 100 can adjust the vibration angle of the test piece, perform vibration tests on test pieces with different vibration angle requirements, and effectively improve the versatility of the vibration fixture 100.

[0050] In some optional embodiments, the vibration fixture 100 further includes an auxiliary support assembly 40 mounted on the support surface 111. The auxiliary support assembly 40 includes two side supports 41 and a first fastener 42. The two side supports 41 are respectively located on both sides of the mounting assembly 20 along the second direction Y. The first direction X, the second direction Y and the thickness direction Z of the base assembly 10 are arranged to intersect each other. The side supports 41 have an arc-shaped groove 411 that extends through along the second direction Y. The arc-shaped groove 411 extends along an arc-shaped trajectory, and the central axis of the arc-shaped groove 411 is concentric with the rotation axis. The first fastener 42 passes through the arc-shaped groove 411 and is connected to the mounting assembly 20. The first fastener 42 can slide in the arc-shaped groove 411 as the mounting assembly 20 rotates, and the first fastener 42 can limit the relative position between the mounting assembly 20 and the side supports 41.

[0051] The vibration fixture 100 also includes an auxiliary support assembly 40, which includes two side brackets 41 and one or more first fasteners 42. The two side brackets 41 are respectively connected to the base assembly 10 and are disposed on both sides of the mounting assembly 20 along the second direction Y. The two side brackets 41 can clamp at least a portion of the mounting assembly 20. The first direction X, the second direction Y, and the thickness direction Z of the base plate 11 are arranged in pairs, or alternatively, in pairs perpendicular to each other.

[0052] Furthermore, the side bracket 41 is provided with an arc-shaped groove 411, which can extend along an arc-shaped trajectory, and the central axis of the arc-shaped trajectory can coincide with the rotation axis of the mounting assembly 20 when it rotates, and when the mounting assembly 20 rotates relative to the base assembly 10, the same area on its side in the second direction Y remains directly opposite to the arc-shaped groove 411.

[0053] Based on this, the first fastener 42 is used to assist in fixing the angular position of the mounting assembly 20 through the arc-shaped groove 411 and the side bracket 41. Specifically, a connecting hole can be provided in the area on the side of the mounting assembly 20 corresponding to the arc-shaped groove 411, and the first fastener 42 is inserted into the connecting hole and passes through the arc-shaped groove 411. During the rotation of the mounting assembly 20, the first fastener 42 slides in the arc-shaped groove 411. Optionally, the first fastener 42 can be welded to the mounting assembly 20, snap-fitted to it, or threaded to it.

[0054] Furthermore, the first fastener 42 can fix the angle of the mounting assembly 20 by fixing its relative position to the side bracket 41. For example, the first fastener 42 can be a screw that passes through the arcuate groove 411 and is threadedly connected to the side of the mounting assembly 20. By tightening the first fastener 42, the side bracket 41 can be pressed against the side of the mounting assembly 20, and the mounting assembly 20 can be fixed at a preset angle through friction, reducing the possibility of the mounting assembly 20 loosening or shaking during vibration testing and avoiding affecting the vibration test results. At the same time, the side bracket 41 can also help the angle adjustment assembly 30 share some of the force, enabling the vibration fixture 100 to withstand medium to high levels of vibration conditions and increasing the service life of the angle adjustment assembly 30, thereby extending the overall service life of the vibration fixture 100.

[0055] Optionally, side brackets 41 are provided on both sides of the mounting component 20, and first fasteners 42 can be provided on both sides to improve the stability of angle fixation; or, first fasteners 42 can be provided on only one side to reduce costs and improve the convenience of adjusting the angle of the mounting component 20.

[0056] Optionally, the side bracket 41 may also be provided with multiple observation holes, which are arranged through the second direction Y and spaced apart. The through observation holes can reduce the overall weight of the vibration fixture 100, which is beneficial for vibration testing and can also reduce costs. At the same time, the observation holes allow for convenient and intuitive observation of the angle of the mounting component 20 and whether the mounting component 20 is sliding or shaking, which can further improve the accuracy and reliability of vibration testing.

[0057] Optionally, the side bracket 41 is provided with a bracket connection hole on the side facing the base assembly 10, and the base assembly 10 is provided with a bracket mounting hole. The side bracket 41 is connected to the base assembly 10 by fasteners passing through the bracket connection hole and the bracket mounting hole, so that the connection is stable and easy to install and remove.

[0058] Please see Figure 3 , Figure 3 yes Figure 1 An enlarged view of region A shown.

[0059] In some optional embodiments, the central angle corresponding to the arc groove 411 is greater than or equal to 90°, and the side bracket 41 is provided with angle markings distributed along the extension direction of the arc groove 411. The angle markings are used to indicate the rotation angle of the mounting assembly 20.

[0060] Optionally, the arc groove 411 extends along an arc-shaped trajectory, and the central angle corresponding to the arc-shaped trajectory can be greater than or equal to 90°, so that the mounting assembly 20 can adjust the angle between itself and the support surface 111 within a large range, which facilitates providing different test environments for the test piece.

[0061] Optionally, the side bracket 41 may also be provided with an angle mark corresponding to the extension angle of the arcuate groove 411. The numerical range of the angle mark corresponds to the central angle of the arcuate groove 411, for example, it can be 0°-90°. This angle mark can be provided on the upper surface of the side bracket 41 on the side away from the base assembly 10 for easy viewing by the operator. At the same time, an indicator mark, such as an arrow, engraved line, or triangular indicator pattern, can be provided on the side surface of the mounting assembly 20 facing the side bracket 41, near the angle mark, to correspond to the aforementioned angle mark and more intuitively show the angle of the mounting assembly 20 and the angle change between the two positions.

[0062] By setting angle markings corresponding to the arc groove 411, operators can easily adjust the angle adjustment component 30 to quickly adjust the mounting component 20 and the base component 10 to the angle required for vibration testing of the test piece.

[0063] Optionally, a groove extending along the first direction X can be provided on the side of the base plate 11 opposite to the support surface 111. The position of the groove corresponds to the position of the slide rail 31 in the thickness direction Z. In an embodiment where the slide rail 31 is connected to the base plate 11 by fasteners, the mounting hole on the base plate 11 can be located at the position of the groove, that is, the orthographic projection of the groove along the thickness direction Z covers the orthographic projection of the aforementioned mounting hole. This avoids the fasteners protruding from the base plate 11 and prevents the bottom surface of the vibration fixture 100 from being uneven, thereby making it easier for the vibration fixture 100 to be connected and fitted with the table surface of the vibration table or other positions.

[0064] In some optional embodiments, the slide rail 31 is provided with two slide grooves 311 extending along the first direction X, and the slide grooves 311 are recessed along the second direction Y. The two slide grooves 311 are symmetrically arranged on opposite sides of the slide rail 31 in the second direction Y. The sliding member 32 includes a sliding body 321 and two limiting parts 322 disposed on the sliding body 321. The sliding body 321 is sleeved on the slide rail 31, and the limiting parts 322 extend at least partially into the slide grooves 311. The limiting parts 322 and the slide grooves 311 are arranged in a one-to-one correspondence.

[0065] In one embodiment of the vibration fixture 100 provided in this application, the slide rail 31 extends along a first direction X, and its opposite sides in the second direction Y can be respectively provided with grooves 311 that are recessed towards each other along the second direction Y. Optionally, for the same slide rail 31, only one groove 311 can be provided on the same side surface, or multiple parallel grooves 311 can be provided on each side surface simultaneously. The grooves 311 on the opposite side surfaces can be symmetrically arranged along the second direction Y so that the sliding member 32 is subjected to uniform force during sliding.

[0066] For example, in an embodiment where a groove 311 is provided on each of the opposite two sides of each slide rail 31, the cross-sectional shape formed by the slide rail 31 in the interface perpendicular to its own extension direction can be "T" shaped or "I" shaped.

[0067] Correspondingly, the sliding member 32 may include a sliding body 321 and a limiting part 322. The sliding body 321 is the main structure of the sliding member 32, and it can be arranged around the slide rail 31. For example, the cross-sectional shape formed by the sliding body 321 in a section perpendicular to the first direction X can be close to a "U" shape, with the opening of the "U" facing the side where the base plate 11 is located. Based on this, the limiting part 322 protrudes from the sliding body 321 toward the side where the slide rail 31 is located, and at least partially extends into the slide groove 311 to form a concave-convex fit. This structure can limit the relative position between the sliding member 32 and the slide rail 31 along the thickness direction Z of the base plate 11, avoiding the sliding member 32 from jumping or misaligning in this direction during vibration testing, and improving the reliability of the vibration fixture 100.

[0068] Optionally, the number of limiting portions 322 in the slider 32 can be the same as the number of corresponding grooves 311. The extension dimension of the groove 311 in the first direction X can be the same as or slightly smaller than the extension dimension of the slide rail 31, so that the slider 32 has a sufficient range of movement. The dimension of the limiting portion 322 in the first direction X can be the same as or smaller than the dimension of the slider 32 in that direction. As long as the strength of the limiting portion 322 is sufficient to keep the relative position between the slider 32 and the slide rail 31 stable along the thickness direction Z without deformation, this application does not impose any specific limitations on this.

[0069] Optionally, the sliding member 32 may have a recessed groove on the side facing away from the substrate. The two opposite walls of this groove may each have a recessed hole, in which a rotating shaft is disposed. Both ends of the rotating shaft extend into the recessed holes on both sides. The first end of the support rod 33 is rotatably connected to this rotating shaft. A connecting hole may be provided on this side end of the support rod 33, allowing the aforementioned rotating shaft to pass through the connecting hole on the support rod 33. This ensures a stable and reliable rotational connection between the support rod 33 and the sliding member 32.

[0070] In some optional embodiments, the slide rail 31 is provided with a plurality of first fixing holes 312 extending along the second direction Y, and the plurality of first fixing holes 312 extend along the first direction X and are spaced apart in the first direction X; the sliding body 321 is provided with a second fixing hole 323 extending along the second direction Y, and the orthographic projection of the second fixing hole 323 at least partially overlaps with the orthographic projection of the first fixing hole 312 along the second direction Y; the angle adjustment assembly 30 further includes a second fastener 34, which passes through the first fixing hole 312 and the second fixing hole 323 to define the relative position of the slider 32 and the slide rail 31 in the first direction X.

[0071] Optionally, the slide rail 31 and the slider 32 may be provided with a first fixing hole 312 and a second fixing hole 323 respectively. The two fixing holes and the second fastener 34 are used to limit the relative position of the slider 32 and the slide rail 31 in the first direction X.

[0072] Specifically, the first fixing hole 312 is provided through the slide rail 31 along the second direction Y. Each slide rail 31 may be provided with multiple first fixing holes 312. These first fixing holes 312 extend along the first direction X and are spaced apart in the first direction X to expand the range to which the slider 32 can move and be locked in position. The first fixing hole 312 may be a rectangular hole or an oblong hole, etc.

[0073] Correspondingly, the slider 32 is provided with a second fixing hole 323, which extends through the slider along a second direction Y. In this direction, the position of the first fixing hole 312 corresponds to the position of the second fixing hole 323, and may further be configured to be directly opposite each other, so that the second fastener 34 can pass through both the first fixing hole 312 and the second fixing hole 323 simultaneously. Exemplarily, in an embodiment where the slider 32 has a U-shaped cross-sectional shape, both sidewalls are provided with second fixing holes 323.

[0074] Therefore, by passing the second fastener 34 through both the first fixing hole 312 and the second fixing hole 323, the sliding member 32 can press and clamp the slide rail 31 along the second direction Y, preventing the sliding member 32 from moving along the slide rail 31. In turn, the support rod 33 prevents the rotation of the mounting assembly 20, so that the mounting assembly 20 can be kept at a preset angle, which is convenient for vibration testing.

[0075] In some alternative embodiments, the mounting assembly 20 includes a mounting plate 23 and a rotating bracket 24. The mounting plate 23 has a mounting groove on the side facing the support rod 33. The rotating bracket 24 is at least partially disposed in the mounting groove and detachably connected to the mounting plate 23. The rotating bracket 24 is rotatably connected to one end of the support rod 33.

[0076] Optionally, the mounting assembly 20 may include a mounting plate 23 and a rotating bracket 24. The mounting plate 23 may be a plate-shaped member extending along a plane, with one surface facing away from the angle adjustment assembly 30 for mounting the test piece, and the opposite surface detachably connected to the rotating bracket 24. Furthermore, the rotating bracket 24 may be similarly provided with a groove, a recess, and a rotating shaft as the sliding member 32. The rotating shaft engages with a through hole at one end of the support rod 33, allowing the support rod 33 to be rotatably connected to the rotating bracket 24.

[0077] Furthermore, the mounting plate 23 may have a mounting groove on the side facing the angle adjustment assembly 30. This mounting groove is recessed along the thickness direction Z of the mounting plate 23 itself, and the rotating bracket 24 is at least partially disposed in this mounting groove. The rotating bracket 24 may be connected to the mounting plate 23 by fasteners.

[0078] By providing a mounting groove on one side of the mounting plate 23 and placing the rotating bracket within the mounting groove, the size of the rotating bracket 24 protruding from the mounting plate 23 can be reduced while facilitating rotational connection with the support rod 33. This structure can prevent interference between the rotating bracket 24 and the support rod 33 and the slide rail 31 when the mounting component 20 rotates on the side where the slide rail 31 is located and the angle between the mounting component 20 and the support surface 111 is small.

[0079] In some optional embodiments, the base assembly 10 further includes a rotating support 12, with the support surface 111 located on the base plate 11. The rotating support 12 is disposed on the support surface 111 and detachably connected to the base plate 11. The first end of the mounting assembly 20 is rotatably connected to the rotating support 12 via a rotating shaft.

[0080] In addition to the base plate 11, the base assembly 10 may also include a rotating support 12, which is connected between the base plate 11 and the mounting assembly 20. Specifically, the rotating support 12 can be detachably connected to the base plate 11 via fasteners and mounting holes, and the rotating support 12 can be rotatably connected to the first end of the mounting assembly 20 via a rotating shaft. By providing the detachably connected rotating support 12, it is convenient to perform assembly, disassembly, and maintenance operations on frequently rotating parts such as the rotating shaft. Furthermore, by replacing different rotating support 12s, the position of the rotating shaft of the mounting assembly 20 can be adjusted accordingly, thereby further improving the applicability of the vibration fixture 100.

[0081] In the thickness direction Z, the rotating support 12 can have a certain size so that there is a certain distance between the central axis of the rotating shaft and the support surface 111. This provides a space for the mounting assembly 20 to rotate to a smaller angle with the support surface 111, and avoids the mounting assembly 20 from being unable to rotate to the preset angle due to interference with the support rod 33 and the slide rail 31.

[0082] Optionally, the mounting assembly 20 may include one or more rotating support seats 12. Multiple rotating support seats 12 may be spaced apart along the second direction Y, and more preferably, they may be equally spaced, so that the force on the mounting assembly 20 is more uniform during vibration testing. Simultaneously, the shared force on multiple rotating support seats 12 not only improves the vibration resistance level of the vibration fixture 100 but also increases the service life of the rotating support seats 12.

[0083] In some optional embodiments, the vibration fixture 100 further includes an adapter plate 50 and a third fastener 60. The adapter plate 50 is connected to the mounting assembly 20, which has a plurality of first connection holes 25. The adapter plate 50 has a plurality of second connection holes 51. The third fastener 60 passes through the first connection holes 25 and the second connection holes 51 to detachably connect the adapter plate 50 to the mounting assembly 20.

[0084] In some embodiments, the vibration fixture 100 further includes an adapter plate 50 and a third fastener 60 for fixing the adapter plate 50. The adapter plate 50 is detachably connected to the mounting assembly 20 via the third fastener 60, and the test piece can be detachably connected to the adapter plate 50.

[0085] Optionally, the mounting component 20 may be provided with a plurality of first connection holes 25, and the adapter plate 50 may be provided with a plurality of second connection holes 51. By passing the third fastener 60 through both the first connection holes 25 and the second connection holes 51, the adapter plate 50 can be detachably connected to the mounting component 20. In embodiments with a large number of first connection holes 25, multiple different connection positions can be provided for the adapter plate 50.

[0086] Since the location of the mounting holes on most test pieces is difficult to change, an adapter plate 50 is provided in the vibration fixture 100 to facilitate the installation of the test piece onto the mounting assembly 20. By providing the adapter plate 50, the test piece can be installed on the adapter plate 50 first, and then the adapter plate 50 can be connected to the mounting assembly 20, thereby facilitating the adjustment of the connection angle and position of the test piece.

[0087] Please see Figure 4 , Figure 4 This is a schematic diagram of the structure of the vibration fixture provided in some embodiments of this application. Figure 3 In some optional embodiments, a plurality of first connecting holes 25 are arranged to form a plurality of first pattern units, and a plurality of second connecting holes 51 are arranged to form at least one second pattern unit. Along the thickness direction of the adapter plate 50, the second pattern unit can be configured to correspond to any of the plurality of first pattern units.

[0088] The mounting component 20 in the vibration fixture 100 is provided with multiple first connection holes 25, and the adapter plate 50 is provided with multiple second connection holes 51. When the two are connected to each other, the mounting component 20 can be provided with multiple installation positions, and the adapter plate 50 can be connected to different positions.

[0089] Specifically, multiple first connecting holes 25 are arranged to form multiple first pattern units, and second connecting holes 51 are arranged to form at least one second pattern unit. The specific shape and structure of the second pattern unit can be set according to the shape and size of the test piece and the shape and size of the adapter plate 50, while the first pattern units are consistent with the second pattern units. It can be understood that the first pattern unit is obtained by selecting multiple holes from the multiple first connecting holes 25 on the mounting assembly 20. By selecting different first connecting holes 25, multiple first pattern units in different positions can be formed. Different first pattern units may share a common first connecting hole 25.

[0090] Specifically, such as Figure 1 and Figure 4As shown, the first connecting hole 25 can form multiple first pattern units M, and the second connecting hole 51 can form a second pattern unit N. By setting M and N accordingly, a connection at a preset angle can be achieved through the third fastener 60. During testing, the multiple first pattern units M can be selected according to the required vibration angle of the tested component and the size and shape of the adapter plate 50. For example, as... Figure 4 As shown, by rotating the mounting assembly 20 and selecting two of the first pattern units M, the vibration direction of the test piece can be made perpendicular to each other.

[0091] By making the first connecting hole 25 into multiple first pattern units with different positions corresponding to the second pattern unit, the adapter plate 50 can have multiple different installable positions on the mounting assembly 20. Combining this structure with the rotation of the mounting assembly 20 can further improve the flexibility and applicability of vibration testing using the vibration fixture 100.

[0092] In some optional embodiments, the mounting assembly 20 includes a mounting plate 23 and a rotating bracket 24 that are detachably connected to each other. The rotating bracket 24 is rotatably connected to one end of the support rod 33. Along the thickness direction of the mounting plate 23, the orthographic projections of a plurality of first connecting holes 25 are all offset from the orthographic projections of the rotating bracket 24.

[0093] The mounting assembly 20 may include a mounting plate 23 and a rotating bracket 24. Optionally, the mounting assembly 20 may have one rotating bracket 24, and all support rods 33 may be connected to the rotating bracket 24. Alternatively, the mounting assembly 20 may have multiple rotating brackets 24, each of which is connected to multiple support rods 33.

[0094] Based on this, along the thickness direction of the mounting plate 23, the orthographic projections of the plurality of first connecting holes 25 can be staggered from the orthographic projection of the rotating bracket 24, that is, the area where the first connecting holes 25 are provided avoids the area where the rotating bracket 24 is provided, and the two are staggered from each other. This structure can reduce the possibility of stress concentration in the mounting plate 23 during vibration, which could lead to damage to the weaker positions where the first connecting holes 25 or the rotating bracket 24 are provided.

[0095] Optionally, embodiments of this application may also provide a vibration testing device, including a vibration table and a vibration fixture 100 as described in any of the above embodiments. The vibration table is used to output vibration in the vertical or horizontal direction. The vibration fixture 100 is connected to the table surface of the vibration table. The vibration table may be connected to the side of the base plate 11 away from the support surface 111. The test piece is further connected to the mounting assembly 20 in the vibration fixture 100.

[0096] Based on this, the angle of the mounting component 20 can be adjusted accordingly by operating the angle adjustment component 30, thereby changing the vibration direction of the test piece and performing different vibration tests. The vibration testing equipment may also include components such as sensing and detection devices and control devices, which are not specifically limited in this application.

[0097] The vibration table provided in one embodiment of this application can perform vibration tests on equipment with different vibration angle requirements. Therefore, it is not necessary to set up multiple fixtures, nor is it necessary to install and disassemble the vibration fixture 100 multiple times during the test. This reduces costs and saves time.

[0098] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A vibration fixture, characterized in that, include: A base assembly includes a base plate having a support surface on one side in its thickness direction; A mounting component is disposed on the side of the support surface and used to mount the test piece. The mounting component has a first end and a second end opposite to each other. The first end is rotatably connected to the base assembly via a rotating shaft. An angle adjustment assembly is connected between the base assembly and the mounting assembly. The angle adjustment assembly includes a slide rail, a slider, and a support rod. The slide rail is mounted on the support surface and extends along a first direction, which intersects the extension direction of the rotation axis. One end of the support rod is rotatably connected to the slider and the other end is rotatably connected to a second end. The slider slides in cooperation with the slide rail and can reciprocate relative to the slide rail along the first direction to drive the mounting assembly to rotate relative to the base assembly.

2. The vibration fixture according to claim 1, characterized in that, The vibration fixture also includes an auxiliary support assembly mounted on the support surface. The auxiliary support assembly includes two side brackets and a first fastener. The two side brackets are respectively located on both sides of the mounting assembly along the second direction. The first direction, the second direction, and the thickness direction of the base assembly intersect each other. The side brackets have an arc-shaped groove that extends through the second direction. The arc-shaped groove extends along an arc-shaped trajectory, and the central axis of the arc-shaped groove is concentric with the rotation axis. The first fastener passes through the arc-shaped groove and is connected to the mounting assembly. The first fastener can slide in the arc-shaped groove as the mounting assembly rotates, and the first fastener can define the relative position between the mounting assembly and the side bracket.

3. The vibration fixture according to claim 2, characterized in that, The central angle corresponding to the arc groove is greater than or equal to 90°, and the side bracket is provided with angle markings distributed along the extension direction of the arc groove. The angle markings are used to indicate the rotation angle of the mounting assembly.

4. The vibration fixture according to claim 1, characterized in that, The slide rail is provided with two slide grooves extending along the first direction, and the slide grooves are recessed along the second direction. The two slide grooves are symmetrically arranged on opposite sides of the slide rail in the second direction. The sliding component includes a sliding body and two limiting parts disposed on the sliding body. The sliding body is sleeved on the slide rail, and the limiting parts extend at least partially into the slide groove. The limiting parts and the slide groove are respectively configured to correspond one-to-one.

5. The vibration fixture according to claim 4, characterized in that, The slide rail is provided with a plurality of first fixing holes that extend through the second direction, and the plurality of first fixing holes extend along the first direction and are spaced apart in the first direction. The sliding body is provided with a second fixing hole that extends through the second direction, and the orthographic projection of the second fixing hole at least partially overlaps with the orthographic projection of the first fixing hole along the second direction. The angle adjustment assembly further includes a second fastener that passes through the first fixing hole and the second fixing hole to define the relative position of the slider and the slide rail in the first direction.

6. The vibration fixture according to claim 1, characterized in that, The mounting assembly includes a mounting plate and a rotating bracket. The mounting plate has a mounting groove on the side facing the support rod. The rotating bracket is at least partially disposed in the mounting groove and detachably connected to the mounting plate. The rotating bracket is rotatably connected to one end of the support rod.

7. The vibration fixture according to claim 1, characterized in that, The base assembly further includes a rotating support seat, which is disposed on the support surface and detachably connected to the base plate. The first end of the mounting assembly is rotatably connected to the rotating support seat via the rotating shaft.

8. The vibration fixture according to claim 1, characterized in that, The vibration fixture also includes an adapter plate and a third fastener. The adapter plate is connected to the mounting assembly. The mounting assembly is provided with a plurality of first connection holes, and the adapter plate is provided with a plurality of second connection holes. The third fastener passes through the first connection holes and the second connection holes to detachably connect the adapter plate to the mounting assembly.

9. The vibration fixture according to claim 8, characterized in that, Multiple first connecting holes are arranged to form multiple first pattern units, and multiple second connecting holes are arranged to form at least one second pattern unit. Along the thickness direction of the adapter plate, the second pattern unit can be configured to correspond to any one of the multiple first pattern units.

10. The vibration fixture according to claim 8, characterized in that, The mounting assembly includes a mounting plate and a rotating bracket that are detachably connected to each other, and the rotating bracket is rotatably connected to one end of the support rod. Along the thickness direction of the mounting plate, the orthographic projections of the plurality of first connecting holes are all offset from the orthographic projections of the rotating bracket.

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